Sonoma, California Zoning Map
Zoning, overlays and hazards on every parcel — and an answer to what the code actually lets you build. Compiled from current zoning data for all 15 districts.
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What's in the Sonoma dataset
Every field below is available for any Sonoma parcel, on the map and through the AI.
Zoning
- District code & full name
- Parcel boundary & APN
- All 15 districts mapped
Building controls
- Maximum building height
- Floor area ratio (FAR)
- Front setback
- Side setback
Overlays, hazards & AI
- Flood hazard & environmental layers
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- Powered by live parcel data
Where uses are permitted in Sonoma
Share of Sonoma's zoned land where each use is permitted.
- Single-family
- 47.30%
- Multi-family
- 33.17%
- ADU
- 76.44%
- Two-family
- 50.30%
- Retail
- 43.66%
- Eating & drinking
- 19.30%
- Office
- 42.15%
- Hotel / motel
- 15.26%
- Storage & warehouses
- 18.98%
Sonoma, California Zoning Districts: What Do They Mean?
Zoning districts are areas regulated by specific laws that determine land use, building types, and development rules. Each district below shows its zone type and which uses it permits.
| Zone Code | Category | Area | Details |
|---|---|---|---|
A Agriculture | - | 27.4 ac | Standards & uses → |
C Commercial | - | 131.9 ac | Standards & uses → |
C-G Commercial Gateway | - | 33.8 ac | Standards & uses → |
MX Mixed Use | - | 111 ac | Standards & uses → |
Showing 4 of 15 districts
Start from what you're trying to build
Each one runs against the live Sonoma dataset and returns the districts, standards and approvals involved.
What should developers know about Sonoma zoning?
Sonoma is a compact Wine Country city in the heart of the Sonoma Valley with 15 zoning districts that reflect its dual identity as both a historic small town and an agricultural tourism destination. Low Density Residential (R-L) is the dominant district at 600 acres - roughly a third of the city's developed land - setting the tone as a predominantly single-family community. Public and park lands (P and PK combined, roughly 414 acres) form a significant non-developable layer, preserving open space in and around the historic downtown core.
For developers, the Mixed Use (MX) district at 111 acres and the Commercial (C) and Commercial Gateway (C-G) zones totaling about 166 acres are the primary locations for retail, hospitality, and residential-over-commercial projects. The Wine Production (W) district at 13 acres recognizes the city's identity as a wine-producing municipality - a unique district uncommon in most California zoning codes. Hillside Residential (R-HS, 48 acres) introduces topographic constraints and environmental sensitivity for projects on the valley's flanks. Building controls include FAR, lot size, multi-unit controls, density, coverage, pervious surface, setbacks, and height.
This is pre-development intelligence, not legal advice - verify with the local planning department before acquisition.
Sonoma zoning: frequently asked questions
What mixed-use and commercial development is possible near Sonoma's historic plaza?
The Commercial (C) district at 132 acres and the Mixed Use (MX) zone at 111 acres are concentrated in and around the downtown core and Sonoma Plaza. These districts are the most viable locations for ground-floor retail with upper-floor residential or office, boutique hotel, and restaurant uses. The historic nature of the plaza area means design review and potential Historic Preservation constraints apply alongside standard entitlement.
What does the Wine Production zone mean for property owners?
The W (Wine Production) district at 13 acres is rare in a city zoning code and reflects Sonoma's agricultural heritage. It is intended for winery operations, tasting rooms, and wine-related processing within the city limits. Properties in this zone are distinct from the Williamson Act agricultural lands in the broader valley - they function more as commercial-agricultural hybrid parcels suited to direct-to-consumer wine business operations.
How does the Hillside Residential district affect development?
The R-HS (Hillside Residential) zone covers roughly 48 acres on sloped terrain surrounding the valley floor. Hillside development in California often triggers additional environmental review - slope stability, wildfire risk, grading limits, and ridgeline protection are common concerns. Project feasibility on R-HS parcels depends heavily on slope percentage, access road constraints, and fire-safe construction requirements.
Are multifamily housing options available in Sonoma?
Medium Density Residential (R-M) at 239 acres is the primary multifamily tier, and the Residential and High Density (R-H) district at 5.8 acres adds limited high-density capacity. The Mixed Use (MX) zone also accommodates residential, and the Residential and Housing Opportunity (R-O) district at 7 acres explicitly targets housing production. State density bonus and ADU law expand options across all residential districts.
How does tourism drive zoning strategy in Sonoma?
Sonoma's visitor economy - anchored by the plaza, wineries, and lodging - means that bed-and-breakfast, hotel, and short-term rental uses are significant policy questions. The Commercial Gateway (C-G) district at 34 acres serves as a transition zone connecting highway arrival corridors to the downtown, supporting lodging, dining, and visitor-serving retail. Operators considering hospitality projects should confirm use permissions in the target district and check state and local STR regulations.
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Zoning data is pre-development intelligence, not legal advice. Verify with the Sonoma planning department before acquisition or design.